this film is at its heart an exploration of both personal and cultural themes, exposing our exploitative relationship with our environment on a personal level and, by extension, as a society or species. The poo in this sense is a symbol of the by-products of our capitalist consumerism, with alan titchmarsh reflecting the role of the media; alerting us, ridiculing us, perhaps even judging us - the media becomes a collective conscience that binds us to our own environmental mortality. The refrain of titchmarsh is answered by our inability as a global society to take a truly global responsibilty; as we continue to poo at paul's we are nevertheless reminded that the poo is in fact very much situated in our own pants.
And if you made it through that bullshit then your prize is a link to download the poo-pants song: http://snipurl.com/s44u0